Elite Sportz Equipment Core Sliders are a low impact way to tighten your waistline and can be used to complement strength training, CrossFit and cross training workout routines. Our gliding discs produce results without putting strain on your body, so you can work out hard with much less risk of injury. - Made for most floors. One side of our sliding discs has a fabric surface to protect hard floors, while the other is smooth to slide on carpet. - More convenient. We've designed our gliding discs to be easy to store and incredibly portable. - Easy to use. Purchase the sliding discs and get access to free workout videos to help you use the gliding discs to the fullest! ( link on the packaging ) - Elite sportz equipment Lifetime Warranty. If the our exercise floor workout discs ever break, Elite sportz will replace them at no cost to you! - Tone and strengthen your core and add something new to your Crossfit, strength training or cross training workout routine! - Check out our product video on this page at the bottom of the images. Elite Sportz Equipment has a 100% Satisfaction and Lifetime Replacement Warranty if your not completely happy or the product ever breaks. In the event of your product breaking or you're unhappy please contact Elite Sportz Equipment through your order and we will assist you.